Machine for making concrete walls.



PATENTED DEC. 25, 1906.

A. J. STOESER. 'MAGHINE FOR MAKING CONCRETE WALLS.

APPLICATION FILED AUG. 8, 1904.

2 SHEETS-SHEET 1 Nb. 839.667. V PATENTED DEC. 25, 1906.

V A. J. STOESER. MACHINE FOR MAKING CONCRETE WALLS.

APPLICATION FILED AUG. 8, 1904.

ZQHEBTS-SHEET 2.

- fold purpose of facilitating the removal of the Fig. 3.

scinmcd, showing the end boards at both ALEXANDER J. STOESER,

OF CHICAGO, ILLINOIS.

MACHINE FOR MAKING ooNoRi-i'TE WALLS.

Specification of Letters Patent.

Patented Dec. 25, 1 906.

Application filed August 8, 1904. Serial No. 219,839.

To (11/ who) it 'IH/(Ly concern;

Be it known that I, ALEXANDER J. STOE- sEn, a citizen of the United States, residingat Chicago, in the county of Cook andState of Illinois, have invented certain .new and useful Improvements in Machines for Mold ing Concrete IValls, of which the following is a full, clear, and exact specification.

My invention relates to devices for molding walls of plastic material commonly called concrete, and it has more especial reference to that class of said machines in which a plurality of mold members are employed and so arranged as to produce separate mold cavities for respectively molding inner and outer sections of a hollow wall, and the mold members are relativelymovable for the twomold from the wall and for making the walls of various thickness.

The improvements relate more especially to the means for thus moving the members; and my invention has for its primary object to provide improved and efficient means for that purpose which shall be at once simple and capable of rapid manipulation without jarring or defacing the newly-molded section and will be entirely without tendencyto bind on the parts which secure the members together. I

IVith these ends in view my invention con sists in certain features of novelty in the construction, combination, and arrangement of parts by which the said objects and certain other objects hereinafter appearing are attained, all as fully described with reference to the accompanying drawings, and more par- ,L'l( ul arly pointed out in the claims.

In the said drawings, Figure l is an end elevation of my improved machine with the end board at one end omitted. Fig. l is a o .1 thereof, partly broken away and partly ends in place. Fig. 3 is a front elevation of a part of one end of the machine. Fig. i is an enlarged detail view of the eccentric and its connected parts in section on the line 4 i, l Fig. is r. transverse ection thereof on thelinc 5 5, i and b 6 is a detail plan view of one (H L a end walls or boards. 1

1 2 3 4 are upright plates which constitute the sides of two mold-cavities 5 6, arranged at a distance apart, with an air-space 7 be- 1 tween them, and which plates may be prol vidcd at top and bottom. with ilanges 8 9, serving to stiffen them longitudinally and to l afford better support for the machine on the surface uponwhich it rests. These mold members 1 2 3 4 are connected together across the top by transverse rods 1011, the rods 10 being arranged near the ends and the rod 11 at about the mid-length, and it might be stated that the number of the rods 11 employed are immaterial, since the purpose of the sameis to stiffen the structure and prevent the possibility of torsional strain upon the rods 10 and of the bending or sagging of the mold members between the rods 10. At least two of the mold members are movable laterally with relation to their companion members, so that the machine may be readily lifted or disengaged from the newly-molded sections of the wall, which, as will be understood, are molded in the mold-cavities 5 6 in the usual way directly upon the wall. For this purpose I have elected to makethe outer member 1 of mold-cavity 5 and the inner member 3 of the mold-cavity 6 thus movable, the member 1 moving outwardly away from its cavity to increase the width thereof and the member 3 moving toward the airspace 7, but also increasing the width of the mold-cavity 6, whereby both sections of the wall will be released, permitting the machine to be lifted off. The other mold members 2 and 4 are rigidly but adjustably secured to the cross-rods 1O 11, so that when desired the width of the mold-cavity 5 6 may be varied for producing walls of various thicknesses. In order that the mold members may be thus supported, moved, and adjusted, the member i is provided with a number of collars 12 13, the former of which are secured to the rods 10 by means of set-screws 15 or other suitable devices and the latter to the rods 11 by set-screws 16 or other suitable means. The member 3 is provided with collars 17 18, the former of which is slidably mounted upon the rods 10, one at each. end of the machine, as shown in Fig. 2, and the latter of which is slidably mounted on the rod 11, while the mold member 2 is supported upon the rods 10 or I l. by means of collars I 1Q 20, respectively, and hold thereon in any suitable way, as by setrows 21, in a, manncr similar to that described with reference to the men'ibcr i. The member 1, although bodily adjustable with. relation to its companion member 2 and also movable outwardly away from the same to release'the machine from the wall, is constructed to turn on a hinge or pivot, which is constituted by the shaft 22 or other suitable means arranged above the level of the upper edges of the mold-cavities and extending longitudinally of the plate or member 1. This member is 5 also capable of sliding on the rods 11, however, like the other members when it is desired to increase the width of the moldcavity 5 for molding a wall of different thickness, and to that end such mold member is vIo provided with sliding collars 23 24, mounted upon the rods 10 11, respectively, one of the collars 23 being arranged at each end like the collars 12, 17, and 19, and these collars 23 24 are provided with suitable fastening devices,

such as set-screws 25 26. The collars 23 24 are supported'from the shaft or rod 22, and the mold member 1 is provided with additional collars 27 28, which are also journalcd loosely upon the shaft 22, so that the mem- 2o ber 1 may swing freely about the center constituted by said shaft. All of the collars with the exception of the collars 23 24 are rigidly connected to their respective mold members 1 2 3 4 by any suitable means, such 25 as arms 29, all practically the same in con struction and extending downwardly on and secured to the outer faces of their respective mold members, as better shown in Figs. 1 and 3, and, if desired, the flanges 8 on the 30 mold members may be let into the arms 29,

as shown in Fig. 1, for the purpose of stiffening said flanges.

In order that the rotary or pivotal movement of the mold member 1 may be imparted 5 to the movable member of the other moldcavitythe member 3, for example-the latter is operatively connected to the member 1, and such connection is capable of adjustment, so that when the operative position of the member 3 is altered the operation of said connection will not be interfered with. This operative connection preferably consists of a p urality of eccentrics 30, arranged one at each end of and preferably secured to the shaft 22 and near the ends of the member 1, so that the rotation of one eccentric will be imparted to another and their movement will be uniform, and eccentric-straps 31, journaled on the eccentrics and connected to the member 3 by suitable means, as rods 32 and pins 33, adapted to be inserted through any one of the series of holes 34 in the rods 32,

the .pins 33 having suitable attachment to the member 3, preferably through the inter- 'mediary of a pair of lugs 35 on the upper side ,of each of the collars 17, and through which lugs the pins 33 pass, while'the rods 32 pass between them and are arranged directly over the bars 10 and collars 19, so as to avoid ob- 6o structing the mold-cavities 5 6. The eccentrics 30 are located to one side of the collarsv 23, and their straps have offset arrn s36 conjoined with the rods 32. It will thus be seen .thatwhenthe lower edge of the'member 31 is thrown outwardly about the center 22 the eccentrics 30 will simultaneously impart a pull to the rods 32, and thereby draw the col lars 17 along the bars 10 with a powerful but uniform and steady movement, the moldcavity 6 being relieved'by this movement of the member 3 and the moldcavit3 5 by the outer swinging movement of the niember 1, which movement, taking place as it does about the elevated center 22, causes the upper as well as the lower edge of member Ito rccede from the moldcavity. In order'that the member 1 may be locked in position, one or more braces 37, preferably one at each. end are provided. These are pivoted inlugs 38 near the lower edge of member 1 and pass through slotted arms or keepers 39, projecting horizontally from the collars 23 and having set-screws 40, whereby the braces 37 may be locked in position. The member 4 is similarly braced at its lower edge by immovable braces 42, secured to the member 4 near i ts lower edge and to projecting ends of the bars 10 11 by set-screws 43 or other suitable means. The ends of the mold-cavities 5 6 are closed by end boards which are both removable and adjustable to allow for the before-described movements and adjustments of the side members of said cavities. These end boards are similar in construction, and the description of one with reference to Figs. 1, 3, and 6 will suffice for all. It consists of secured together by set-screws 46 passing through one and into slots 47 in the other, and the edges of the plates "4445 have upright flanges 48 49, provided with notches 50, which engage over buttons 51 on the side of the mold members, and thereby not only lock the ends boards in position, but also constitute braces for reinforcing when the setscrews 46 are tight for holding the inner members 2 3 from spreading.

Having thus ,described'my invention, what I claim as new therein, and desire to secure by Letters Patent, is-

1. In a machine for molding concrete walls the combination of a plurality of members arranged to produce separate mold-cavities, one of said members being pivotally movable and means for sliding another of said members toward and from its mold-cavity, com prising an operative connection with said pivotal member.

2. In a machine for molding concrete walls the combination of a plurality of members arranged to produce separate moldcavities,

one of said members being pivotally movable, and means for moving another of said members toward and from its mold-cavity, com rising an eccentric movement operative y connected with said pivotal member.

thecombination of a plurality of members one of said members being pivotally movtwo plates 44 45 overlapped and adjustably 3. In a machine for/mo] ding concrete walls arranged to produce separate'inold-cavities,

able, and means for moving another of said members toward and from its mold-cavity, comprising connected eccentrics and a connection between each of said eccentrics and one end of the pivotal member and the other member to be moved.

4. In a machine for molding concrete walls the combination of a plurality of members arranged to produce separate mold-cavities, one of said members being pivotally movable and means for moving another of said members toward and from its mold-cavity comprising eccentrics, eccentric-straps on said eccentrics having offsets, means for connecting the eccentrics with the pivotal member, and rods secured to said offsets and connected Withthe other of said members to be moved bars supported across the said members, and collars connecting said bars and members, said collars being arranged directly under said rods and said eccentrics being arranged to one side of said bars.

5. In a machine for molding concrete walls the combination of a plurality of members arranged to produce separate mold-cavities, one of said members being pivotally movable and means for moving another of said members toward and from its mold-cavity comprising eccentrics and an operative connection between the latter one of said members and said eccentrics, said eccentrics being operatively connected with said pivotal mem ber, and means for adjusting said operative connection between said member to be 5 ,moved thereby and the eccentrics, whereby the thickness of the wall may be varied at will.

6. In a machine for molding concrete walls the combination of a plurality of members arranged to produce separate mold-cavities, one of said members being pivotally movable, and means for moving another of said members toward and from its mold-cavity comprising a pin connected therewith, a rod having a series of holes through any one of which said pin may be passed, and means operatively connecting said rod with said pivotal member for reciprocating the rod.

.-. In a machine for molding concrete 'alls the combination of a plurality of members Lil arranged to produce separate mold-cavities, one of said members being pivotall'y movable, means for moving another of said members toward and from its mold-cmrity 0 miatively connected with said pivotal IUGIHlXTI, and means for holding said pivotal member against pivotal movement.

5. In a machine for mold g concrete walls the cmnbination of a plurality of members arranged to produce separate mold-cavities,

one of said membersbeing pivotally mo'vable, means for moving another of said members relatively to its mold-cavity, o foratively connected with. said pivotal rem er,

a brace connected with said pivotaimcrnber l movement with relation to its for holding it against pivotal movement. a

kee er in which said brace slides andmeane for ocking said brace and keeper together.

9. In a machine for molding concrete walls the combination of a plurality of members arranged to produce separate mold-cavities, one of said members being pivotally-mov'able, means for moving another of said members relatively to its mold-cavity operatively connected with said pivotal member, slotted arms rigidly supported independently of said pivotal member and braces pivoted to said pivotal member and working in said slotted arms.

10. In" a machine for molding concrete walls the combination of a plurality of members arranged to rodnce separate moldcavities, one of said members being ivotally movable, a shaft supported lengt misc of said pivotal member and constituting the pivot thereof, a plurality of eccentrics on said shaft rotatable in unisonwith said pivotal member and means operatively connecting said eccentrics with another one of said members for moving the latterrelatively to its mold-cavity.

11. In a machine for molding concrete Walls the combination of a'plurality of members arranged to produce separate mold-cavities, means for supporting said members adjustably with relation to each other whereby the size of the mold-cavities may be varied, and detachable end Walls for said mold-cavitics comprising overlapped plates slidably connected together and means for connecting the ed es of said lates to said member 12. n a mac zine for molding concrete Walls the combination or a plurality of mt nbers arranged to produce separate mo d-cavities, means for support ing said nn-mhers adlnstably with relation to each or her and end Walls for said moldcavities conmr ing overlap ed 7 lates slidably connected together 211M having notched ilangcs turned inwardly and overlapped with the ends of said menbers and buttons on the ends of said menibcrs adapted to engage in the notches of said flanges for holding the end walls in place.

13. A niolding-machine consisting of two sets of? sides yoked together with one member 'tively connecting the pivotal section '11 11 one of the sections of another cavity, whereby said latter section will be lVOll a sliding cooperatlng section when the pivotal section is moved I latter section Will be given a sliding move- IO about its pivot. ment with relation to its cooperating section 15. In a machine for molding concrete when the pivoted section is moved about its walls, the combination of a plurality of moldpivot, and adjustable end members for said cavities, each of said cavities comprising sepi cavities.

arable sections, one section of one cavity be- ALEXANDER J STGESER.

ing pivotally movable, means operatively Witnesses:

connecting the pivotal section with one of F. A. HOPKINS,

the sections of another cavity, whereby said I A, M. UHER. 

